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simplify mask construction

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Mark Andrews 2018-05-01 10:08:23 +10:00 committed by Ondřej Surý
parent 08050d6524
commit 22fab3199f
1 changed files with 3 additions and 10 deletions
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13
lib/dns/dst_parse.c
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@ -25,7 +25,6 @@
/*%
* Principal Author: Brian Wellington
* $Id: dst_parse.c,v 1.29 2011/08/18 23:46:35 tbox Exp $
*/
#include <config.h>
@ -210,9 +209,7 @@ check_rsa(const dst_private_t *priv, isc_boolean_t external) {
have[i] = ISC_TRUE;
}
mask = ~0;
mask <<= sizeof(mask) * 8 - TAG_SHIFT;
mask >>= sizeof(mask) * 8 - TAG_SHIFT;
mask = (1ULL << TAG_SHIFT) - 1;
if (have[TAG_RSA_ENGINE & mask])
ok = have[TAG_RSA_MODULUS & mask] &&
@ -304,9 +301,7 @@ check_ecdsa(const dst_private_t *priv, isc_boolean_t external) {
have[i] = ISC_TRUE;
}
mask = ~0;
mask <<= sizeof(mask) * 8 - TAG_SHIFT;
mask >>= sizeof(mask) * 8 - TAG_SHIFT;
mask = (1ULL << TAG_SHIFT) - 1;
if (have[TAG_ECDSA_ENGINE & mask])
ok = have[TAG_ECDSA_LABEL & mask];
@ -336,9 +331,7 @@ check_eddsa(const dst_private_t *priv, isc_boolean_t external) {
have[i] = ISC_TRUE;
}
mask = ~0;
mask <<= sizeof(mask) * 8 - TAG_SHIFT;
mask >>= sizeof(mask) * 8 - TAG_SHIFT;
mask = (1ULL << TAG_SHIFT) - 1;
if (have[TAG_EDDSA_ENGINE & mask])
ok = have[TAG_EDDSA_LABEL & mask];